Dynamical formulations of the concept of partial conservation of the axial-vector current H. Snellman — 1972 Annales de l'I.H.P. Physique théorique
Simple facts about analytic vectors and integrability M. Flato; J. Simon; H. Snellman; D. Sternheimer — 1972 Annales scientifiques de l'École Normale Supérieure